Operation controller for electronic computers



FIG. 1 is a top, front and right side perspective view of an operation controller for electronic computers showing our new design,

FIG. 2 is a front elevational view thereof,

FIG. 3 is a rear elevational view thereof,

FIG. 4 is a left side elevational view thereof,

FIG. 5 is a top plan view thereof,

FIG. 6 is a right side elevational view thereof, and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for an operation controller for electronic computers, as shown and described. 